Compare the surfaces of the Moon and Mercury. How are they similar and why?

Compare the surfaces of the Moon and Mercury. How are they similar and why?

Is Venus an evening or morning star?

Is Venus an evening or morning star?

Explain how the age of rocks can be determined by radioactivity.

a. Explain how the age of rocks can be determined by radioactivity. Give an example. b. How can scientists determine the internal structure of the Earth, if the depth of the deepest well is only a tiny fraction of the earth’s diameter? c. Impact cratering, volcanism, tectonics, and erosion are the four major processes that affect planetary surfaces. Briefly explain any two.

If the ages of the Earth and Moon are nearly identical, as believed, why are most rocks found on the Moon so much older than Earth rocks?

d. If the ages of the Earth and Moon are nearly identical, as believed, why are most rocks found on the Moon so much older than Earth rocks? e. What do observations of the Moon suggest about how it was formed? f. Which is hotter, Mercury or Venus? Why?

Venus and Earth are about the same size and mass, yet carbon dioxide is a major constituent of the atmosphere of Venus, while oxygen is much more abundant in the Earth’s atmosphere. Explain why the atmospheres are so different.

g. Venus and Earth are about the same size and mass, yet carbon dioxide is a major constituent of the atmosphere of Venus, while oxygen is much more abundant in the Earth’s atmosphere. Explain why the atmospheres are so different. h. Explain why there are two general families of planets, rocky terrestrial and gaseous jovian. i. The first planets discovered since ancient times were Uranus and Neptune. Compare how they were discovered. j. What knowledge do comets and asteroids provide to studies of the origin of the solar system?